Solution : https://service.sap.com/sap/support/notes/1125926 (SAP Service marketplace login required)
Key words : 
deployed components require java server restart, terms java support package manager, safety deploy workflow strategy, normal deploy workflow strategy, deployment content related issues, -config=/jspm/safetydeploythreshold=-1this, default deploy workflow strategy, deploy workflow strategy, avoid server restarts, symptom java
Related Notes : 
       
| 1443834 | Central SAP Note JSPM 7.2 | 
| 1147119 | Central SAP Note JSPM 7.1 |